Norgren pneuflex polyurethane spring coil compressed air hose norgren pu310600218 a range of polyurethane spring coil hoses with nickel plated brass swivel fittings at both ends the hoses have a high degree of flexibility making them suitable for high mechanical deformation use on compressed air systems for machine tools etc norgren pneuflex pu310600218 pu spring coils 2m 6 x 4mm hose r18 thread